42630631651 has 8 divisors (see below), whose sum is σ = 43085170944. Its totient is φ = 42177448320.

The previous prime is 42630631609. The next prime is 42630631679. The reversal of 42630631651 is 15613603624.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42630631651 - 2⁷ = 42630631523 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42630631651.

It is not an unprimeable number, because it can be changed into a prime (42630631751) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275715 + ... + 401596.

It is an arithmetic number, because the mean of its divisors is an integer number (5385646368).

Almost surely, 2^42630631651 is an apocalyptic number.

42630631651 is a deficient number, since it is larger than the sum of its proper divisors (454539293).

42630631651 is a wasteful number, since it uses less digits than its factorization.

42630631651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677981.

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 42630631651 in words is "forty-two billion, six hundred thirty million, six hundred thirty-one thousand, six hundred fifty-one".